G - Physics – 08 – B
Patent
G - Physics
08
B
340/139
G08B 19/00 (2006.01) G01M 3/04 (2006.01) G01M 3/16 (2006.01)
Patent
CA 1274004
ABSTRACT OF THE DISCLOSURE A water penetration-detecting apparatus includes an optical fiber sensor having an optical fiber, and a water- absorbent material disposed along the optical fiber in contiguous relation to the fiber. The water-absorbent material, when absorbing water, expands volumetrically so as to apply a pressure to an outer peripheral surface of the optical fiber to bend the fiber. A detecting means is connected to the optical fiber sensor for detecting a bending of the optical fiber.
536732
Kobayashi Kazunaga
Sato Nobuyasu
Sawano Hiroyuki
Sugawara Yasuyuki
Suzuki Hideo
Ltd. Fujikura
Ridout & Maybee Llp
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